Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain
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Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain
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Author : Valdis V. Liepa
language : en
Publisher:
Release Date : 1967
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain written by Valdis V. Liepa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Antenna radiation patterns categories.
The feasibility of using physical optics approximation for computing radiation patterns of ground-based HF-VHF antennas in the presence of known ground irregularities is investigated. A computer program was written for physical optics formulation to evaluate the composite radiation patterns of a line source above an irregular, but deterministic, perfectly conducting surface. For the special case of a line source above a perfectly conducting plane with semicylindrical boss,the exact field expressions are derived, and the numerical results are compared with those obtained by physical optics for the same geometry. An error criterion that gives a meaningful error estimate at both the maxima and minima values of the radiation pattern is formulated and applied to the computed result. It is concluded that physical optics approximations can be used for predicting the radiation patterns of ground-based HF-VHF antennas.
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain
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Author : V. V. Liepa
language : en
Publisher:
Release Date : 1967
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain written by V. V. Liepa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Antennas (Electronics) categories.
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain
DOWNLOAD eBooks
Author : Valdis V. Liepa
language : en
Publisher:
Release Date : 1967
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain written by Valdis V. Liepa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Antenna radiation patterns categories.
The feasibility of using physical optics approximation for computing radiation patterns of ground-based HF-VHF antennas in the presence of known ground irregularities is investigated. A computer program was written for physical optics formulation to evaluate the composite radiation patterns of a line source above an irregular, but deterministic, perfectly conducting surface.
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain
DOWNLOAD eBooks
Author : Valdis V. Liepa
language : en
Publisher:
Release Date : 1967
Numerical Approach For Predicting Radiation Patterns Of Hf Vhf Antennas Over Irregular Terrain written by Valdis V. Liepa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Numerical calculations categories.
Essa Technical Report Ier Itsa
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Author :
language : en
Publisher:
Release Date : 1967
Essa Technical Report Ier Itsa written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Meteorology categories.
Essa Technical Reort Ier
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Author : United States. Environmental Science Services Administration
language : en
Publisher:
Release Date : 1967
Essa Technical Reort Ier written by United States. Environmental Science Services Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
An Application Of The Geometrical Theory Of Diffraction To The Scattering Of Radio Waves By Irregular Terrain
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Author : R. H. Ott
language : en
Publisher:
Release Date : 1968
An Application Of The Geometrical Theory Of Diffraction To The Scattering Of Radio Waves By Irregular Terrain written by R. H. Ott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Geometrical diffraction categories.
In this report, a method is developed for the quantitative evaluation of the effects of large irregularities or obstacles on the propagation of a radio wave. The fundamental tool used is Keller's "geometrical theory of diffraction." In contrast to previous methods for treating this problem, the one proposed here is not limited by 1) the type of terrain, 2) the polarization of the transmitting antenna, 3) the radiation pattern of the antenna, and 4) the frequency of the antenna (provided ka>̲ 5.0, where a is the characteristic dimension of the diffracting obstacle). A numerical example showing the antenna pattern behind a hemispherical hill illustrates the application of the theory.
Essa Technical Report Erl
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Author :
language : en
Publisher:
Release Date : 1968
Essa Technical Report Erl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Atmosphere categories.
Essa Technical Report Erl Its
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Author :
language : en
Publisher:
Release Date : 1968
Essa Technical Report Erl Its written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Meteorology categories.
Monthly Catalog Of United States Government Publications Cumulative Index
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Author : United States. Superintendent of Documents
language : en
Publisher:
Release Date : 1979
Monthly Catalog Of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with United States categories.